body {
    background: url("../img/huanghun.jpg")
}

h1 {
    font-size: 2.5rem;
    color: white;
}

.bigBox {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: .4167rem;
    margin: 8.3333rem auto;
    width: 50rem;
    height: 33.3333rem;
    background-color: rgba(0, 0, 0, 0.2)
}

.bigBox input {
    padding-left: .4167rem;
    width: 20rem;
    height: 1.6667rem;
    background: transparent;
    border: none;
    border-bottom: .0833rem solid black;
}


input::placeholder {
    color: black;
}

.bigBox button {
    margin-top: 1.6667rem;
    width: 4.1667rem;
    height: 1.6667rem;
    background: transparent;
}